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mto
New Member
May 18, 2023
Question

Enable DNS Filter

  • May 18, 2023
  • 4 replies
  • 1482 views

When I enable the DNS filter, we get all valid HTTPS sites to show a cert error. What am I missing?

Thanks in advance!

cert_error_40F.JPG

4 replies

adambomb1219
SuperUser
SuperUser
May 18, 2023

Looks like you have HTTPS decryption enabled?

mto
mtoAuthor
New Member
May 18, 2023

Could you advise on how to disable and I will attempt. Please and Thank you!

adambomb1219
SuperUser
SuperUser
May 19, 2023

What Security profiles do you have enabled on the rule?

vikashgupta
Staff
Staff
May 19, 2023

Hi,

I hope you are doing well!

Could you check with nslookup?

It seems DNS issue.

Kindly follow this KB: https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-Web-Page-Blocked-error-when-users-try/ta-p/227243

 

Thanks & Regards,

Vikash Gupta